code: def start(self):
      if self._parent is not current_process():
          raise RuntimeError(
              "Parent is {0!r} but current_process is {1!r}".format(
                  self._parent, current_process()
              )
          )
      self._start_called = True
      if hasattr(self._parent, "_children"):
          self._parent._children[self] = None
      threading.Thread.start(self)
  
imports: import threading
  import sys
  import weakref
  import array
  from .connection import Pipe
  from threading import Lock, RLock, Semaphore, BoundedSemaphore
  from threading import Event, Condition, Barrier
  from queue import Queue
label_desc: Use image node_id 2 for calling the DummyProcess obj's underlying member method code with example usage: obj.start() without return types